粒子群投影寻踪模型在土壤重金属监测中的应用

Application of PSO-PPE model on the assessment of heavy metal pollution in soil

建立基于粒子群算法的投影寻踪等级评价模型,利用降维的思想对J市土壤重金属含量进行污染评价。结果显示,该评价模型的平均绝对误差为0.0207,平均相对误差为0.63%,SSE=0.0026,R2=0.9997,精度较高。通过与综合指数法的结果进行比较,进一步验证了该方法的可靠性。

A PSO-PPE model was established to evaluate the heavy metal pollution in soil,the result showed that the standard deviation was small,which meant the model was good enough.The study could provide scientific basis for the prevention and control of soil heavy metal pollution in J city.